This video illustrates the law of superposition in an easy-to-understand way.
Video explaining the three types of unconformities
This video explains absolute age and how we can use Carbon 14 isotopes to date once-living things.
This is the "Nerd-Version" for anyone who wants to really, really understand radioactive decay!
Recipe for Salt Dough for homework. If you don't have any clay or plaster or playdough, you can make your own. Use sand, pebbles, dirt, spices, whatever... to make the different layers of rock.
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